Convert KML to GML

Turn KML data into Geography Markup Language — free, instant, and entirely in your browser, with optional reprojection to any of 200+ coordinate systems.

No upload. No account. Your data stays on your machine.

Drop your files here or click to browse.

Shapefile (all parts or .zip), GeoJSON, KML/KMZ, GPKG, GPX, DXF, CSV, TAB and more — files never leave your browser.

Output format

Output coordinate system (optional)

Source CRS override (for CAD/CSV without one)

About KML (KML)

Keyhole Markup Language — Google Earth's format. Always WGS84 geographic coordinates; supports styling, descriptions and folders.

Worth knowing: Attributes beyond name/description need ExtendedData; styling is lossy when round-tripping through GIS formats.

About Geography Markup Language (GML)

The OGC XML standard used by government cadastres and INSPIRE datasets across Europe.

Worth knowing: Schema-heavy; application schemas may need the companion .xsd.

How the conversion works

Drop your KML file above.
We read it locally with GDAL compiled to WebAssembly — nothing is uploaded.
Optionally pick an output coordinate system; official datum grids are applied automatically.
Download your GML result, with a transformation report showing exactly what was done.